/*
 * Copyright 2016-2019 yoara
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package yhao.infra.feature.mail.core;

import yhao.infra.feature.mail.core.entity.Email;
import yhao.infra.feature.mail.core.entity.MailTemplateCode;

import java.util.HashMap;
import java.util.Map;

/**
 * 邮件模板工厂
 *
 * @author yoara
 */
public class MailTemplateFactory {
    private final static Map<String, MailTemplateCode> mailTemplates = new HashMap();

    /**
     * @param templateCode 模板枚举值
     * @param receivers    接受者 不可为null
     * @return 邮件模板对象
     */
    public static Email initMail(MailTemplateCode templateCode, String... receivers) {
        if (mailTemplates.get(templateCode.getTemplateCode()) == null) {
            throw new IllegalArgumentException("no template found");
        }
        if (receivers == null) {
            throw new IllegalArgumentException("mail receivers cannot be null");
        }
        MailTemplateCode template = mailTemplates.get(templateCode.getTemplateCode());
        Email email = template.adapterEmail();
        email.setReceivers(receivers);
        return email;
    }

    /**
     * @param code     邮件模板对象
     * @param force    是否强制更新
     */
    public static void addTemplate(MailTemplateCode code, boolean force) {
        if (mailTemplates.get(code.getTemplateCode()) == null || force) {
            mailTemplates.put(code.getTemplateCode(), code);
        }
    }
}
